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uploads: move thumbnail generation code to MediaFile.

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* Move image thumbnail generation code to MediaFile::Image.
* Move video thumbnail generation code to MediaFile::Video.
* Move ugoira->webm conversion code to MediaFile::Ugoira.

This separates thumbnail generation from the upload process so that it's
possible to generate thumbnails outside of uploads.
This commit is contained in:
evazion
2020-05-18 00:31:12 -05:00
parent 24c53172db
commit 45064853de
15 changed files with 269 additions and 423 deletions
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43
test/unit/media_file_test.rb
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@@ -82,4 +82,47 @@ class MediaFileTest < ActiveSupport::TestCase
should "determine the correct filesize for a jpeg file" do
assert_equal(28086, MediaFile.open("test/files/test.jpg").file_size)
end
context "#preview" do
should "generate a preview image" do
assert_equal([150, 101], MediaFile.open("test/files/test.jpg").preview(150, 150).dimensions)
assert_equal([113, 150], MediaFile.open("test/files/test.png").preview(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test.gif").preview(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test-512x512.webm").preview(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test-300x300.mp4").preview(150, 150).dimensions)
end
should "be able to fit to width only" do
assert_equal([400, 268], MediaFile.open("test/files/test.jpg").preview(400, nil).dimensions)
end
end
context "#crop" do
should "generate a cropped preview image" do
assert_equal([150, 150], MediaFile.open("test/files/test.jpg").crop(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test.png").crop(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test.gif").crop(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test-512x512.webm").crop(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test-300x300.mp4").crop(150, 150).dimensions)
end
end
context "for a ugoira" do
setup do
skip unless MediaFile::Ugoira.conversion_enabled?
frame_data = JSON.parse(File.read("test/files/ugoira.json"))
@ugoira = MediaFile.open("test/files/ugoira.zip", frame_data: frame_data)
end
should "generate a preview" do
assert_equal([60, 60], @ugoira.preview(150, 150).dimensions)
assert_equal([150, 150], @ugoira.crop(150, 150).dimensions)
end
should "convert to a webm" do
webm = @ugoira.convert
assert_equal(:webm, webm.file_ext)
assert_equal([60, 60], webm.dimensions)
end
end
end